56 



UNITED STATES AND MEXICAN BOUND AEY 



Astragalus glareosus, Dougl. in HooTc. Fl. Bor. — Am, 1, j?. 152? Near the Copper Mines, 

 May — June ; Bigdoiv, Guadaloupe Pass, Sonora. 



Astragalus Hartwegi, Benth. PI. Hartw. p, 10. El Podrero, near the 110° of longitude, 



Sonora ; Scliott. 



Asieagalus cyaneus, Gray, PI. Fendl. p. 34. Dona Ana, New Mexico, April ; Thurher. 



Astragal 's vacarum, Gray^ PL Wright. 2, p. 43. Ojo de Vaca^ Chihuahua ; Thurher. 



Astragalus (Phaca) tephrodes, Gray, PL Wright. 2, p. 45. Gravelly plains near the base 

 of the Organ mountains and on t' e Mimbres, New Mexico, April — May ; Bigelow, Thurher. 



Astragalus (Phaca) Fendleri, Gray^ I. c, p. 44. Hills at the Copper Mines^ October^ (in 



fruit) ; Bigeloia. 



Astragalus (Phaca) Sonor^j Gray L c. TubaCj Sonora, March ; Farry. 

 Astragalus (Phaca) Thurberi, Gray^ PL Thiirb. p. 312. Fronteras^ Sonora, June; Thurber^ 

 Astragalus (Phaca) leucopsiSj Torr. <& Gray^ FL 1,^. 694. Phaca canescenSj NtitL in Torr. 

 <Sc Gray^L c. jp. 344, non Hooh. & Am. (Tab. XYI,) San Diego, California; Parry, SchotL 

 The pods are about an inch and a quarter long, excluding the stipe^ which is 4 lines long. 



Astragalus (Phaca) crotalari^^ Benth. PL Hartw. p. 307. (Tab. XYII.) Mountains east 

 of San Diego, California, June, (with flowers and ripe pods ;) Parry, A stout species, 

 commonly 4 — 6 feet high. 



Astragalus (Phaca) triflorus, Gray^ PL Wright. 2, j?. 45. Phaca triflora, DQ. Sandy plains 



and mountains on the upper Kio Grande, in New Mexico and western Texas ; also in Cohahuila ; 

 April. 



Oxytropis Lamberte, Pursh^ var. Gray^ PL Wright. 1,^, 53. Hills near the Copper Mines, 

 and Ojo Caliente ; Big low. 



CHiETOCALYX WiSLizENi, Gray^ PL Wright. 1, p. 51, & 2, p. 45. (Tab. XVIII, fig. 5—70 

 Mount Carmel, and mountains of Santa Eosa, Cohahuila, October — November, (in fruit ;) Parry ^ 



Bigeloia. 



(n. sp. :) 



concoloribus ; dentibus calycis lineari-subulatis nudis tubo 



staminibu 



(Tab. XVIII.) Sierra Ve 



de los Samotas, Sonora, August ; SchotL Stem branching from a somewhat woody base 

 slender, 2 — 3 feet long, twining towards the extremity. Leaflets 6 — 8 lines long, thin, thos< 



leaves 



Flowers 



about six in axillary fascicles or short racemes. Pedicels rather shorter than the flowers. 



r , 



Calyx broadly campanulate, entirely destitute of glands. Corolla yellow. Vexillum ovate. 



oblong, emarginate, slightly pubescent. W 



mona 



below 



Orary 



Mat 



3'jointed ; the terminal joint foliaceous and 



dilated. Differs from C. Wislize 



o 



tetraphtlla, Michx. Fl. 2, p. 76; Torr. d Gray, FL 1, p. 354. Laredo and Ring- 



gold Barracks, June ; Schott. 



PI 



moun 



river, and hills at the Copper Mines, July — August ; Bigelow. 



D ESMon 



Santa Cruz, Sonora, September ; Thurher 



